Laserfiche WebLink
1 <br />' the stream gradient steepens and the first and second <br />' terraces become indistinct and perhaps absent (see Map 7). <br />The process here appears to have been one of downcutting <br />through fan materials with the movement of knick points <br />' which have left small terrace landforms which run for <br />several hundred feet and then disappear, These terrace <br />' landforms are of various heights above the stream channel <br />and are occassionally absent altogether. Hence, terrace <br />' landforms could not be mapped very far upstream into the fan <br />' materials. Where first and second terraces were mappable, <br />they were mapped together due to their narrowness. <br />' The stream channels of Ward Creek and Williams Creek <br />(which are perennial and intermittent streams, respectively) <br />' are comprised primarily of basalt cobbles. (Both of these <br />streams are generally greater than 4 feet in width and 1 <br />foot in depth.) <br />' water Availability Characteristics <br />In order to assess whether water associated with the <br />' drainages near the Red Canyon Mines is sufficient for <br />subirrigation or flood irrigation agricultural activities, <br />studies were undertaken to document the existence of (or <br />' potential for) flood irrigation and the presence of <br />subirrigation. Based on the extent of the potential impacts <br />' associated with the Red Canyon Mines as described in the <br />previous section of this report, these studies focused on <br /> <br /> <br />80 <br />